Sending e-mail from iPad/iPhone doesn't work

Hi guys!

I found some answers, like t$$anonymous$$s one but somehow I couldn't get the e-mail to work.

Here is my code snippet

 function Update(){
     if(objectHit.gameObject.tag == "TellFriend"){
         Application.OpenURL("mailto:yesyoucan@hotmail.com?subject=Email&body=from Unity");
         Debug.Log("TellFriend");
     }
 }

The "TellFriend" is printed in the log so I'm sure it's running but not$$anonymous$$ng happen after it's triggered. Did I miss anyt$$anonymous$$ng? I have searched for answers and everybody said to use "Application.OpenURL()". Thank you in advance =)